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lana [24]
3 years ago
12

If a snack cake contains 450 food calories and Carla

Chemistry
1 answer:
Oksana_A [137]3 years ago
8 0

Answer:

9/10hr

Explanation:

From the question given:

Carla was able to burn 250 calories by running for one-half (1/2)hr.

Therefore, Carla will burn 450calories by running for = (450x1/2) /250 = 225/250 = 9/10hr

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How many moles are in 60.66 g CF2Cl2
mafiozo [28]
There are 0.501 moles in 60.66g of CF2Cl2
7 0
3 years ago
Muriatic acid, an industrial grade of concentrated HCl, is used to clean masonry and cement. Its concentration is 11.7 M.
harkovskaia [24]

The volume of Muriatic acid needed is 199ml.

<h3>What is concentration?</h3>
  • Concentration in chemistry is calculated by dividing a constituent's abundance by the mixture's total volume.
  • Mass concentration, molar concentration, number concentration, and volume concentration are four different categories of mathematical description.  
  • Any type of chemical mixture can be referred to by the term "concentration," however solutes and solvents in solutions are most usually mentioned.
  • There are different types of molar (quantity) concentration, including normal concentration and osmotic concentration.
<h3>How is concentration determined?</h3>
  • Subtract the solute's mass from the total volume of the solution. Using m as the solute's mass and V as the total volume of the solution, write out the equation C = m/V.
  • To get the concentration of your solution, divide the mass and volume figures you discovered and plug them in.

Learn more about concentration here:

brainly.com/question/13872928

#SPJ4

7 0
2 years ago
How to balance equations
dezoksy [38]

start the balancing by writing down how many atoms there are per element. we’ll use this as an example:

C3H8 + O2 --> H2O + CO2

C = 3 C = 1

H = 8 H = 2

O = 2 O = 3

balance the carbon first, as it is easiest to do. add a coefficient to the single carbon atom on the right of the equation to balance it with the 3 carbon atoms on the left of the equation:

C3H8 + O2 --> H2O + (3)CO2

now there are 3 carbon atoms on each side. however, when you do this, you multiply the amount of oxygen atoms you had. therefore, now, there are 6 carbon atoms in 3CO2, plus that other oxygen atom in H2O. you now have 7 O atoms instead of 3.

C = 3 C = 3

H = 8 H = 2

O = 2 O = 7

now let’s move on to the hydrogen atoms.

C3H8 + O2 --> H2O + 3CO2

you have 8 hydrogen atoms on the left side, and 2 on the right. in order to balance them, you have to multiply the right side’s hydrogen atoms by 4. 4(2) = 8.

C3H8 + O2 --> (4)H2O + 3CO2

now both hydrogen and carbon atoms are balanced. same amount on both sides. however, your oxygen atoms have changed due to the multiplying (right side). you now have 10 of them.

C = 3 C = 3

H = 8 H = 8

O = 2 O = 10

now we balance the oxygen atoms. multiply the left side of the equation’s oxygen atoms by 5. 5(2) = 10

C3H8 + (5)O2 --> 4H2O + 3CO2

the chemical equation is all balanced. basically, just multiply with numbers until it equals the same amount on both sides.

C = 3 C = 3

H = 8 H = 8

O = 10 O = 10

4 0
3 years ago
Which bond is least polar <br> N-O<br><br> S-O<br><br> H-O<br><br> C-O
Sphinxa [80]

Answer:

Her Eid per Ruth Jααte Hαin wo Humse,

αb bαtαo Hum Eid Mαnαye yα unko.

ہر عید پر روٹھ جاتے ہیں وہ ہم سے

اب بتاؤ ہم عید منائے یا ان کو

ik ishq ka gam aafat aur us pe ye dil aafat

ya gam na diya hota ya dil na diya hota

bas ek jhijhak hai haal-e-dil sunaane mein,

ki tera bhi jikr aaega mere is phasaane mein.

kya kahoon kis tarah se jita hoon

gam ko khaata hoon aansoo pita hoon

8 0
3 years ago
By what means (or force) can the atoms in compounds be separated?
Neporo4naja [7]

Answer:

chemical means

Explanation:

Compounds can be separated by chemical means physical means boiling pressure

5 0
3 years ago
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